It took me a while, but I finally figured out how to create an 'on exit' macro to automatically navigate from a control on my parent form to a control on my subform. Everything was working fine until I created an 'on load' macro that automatically started a new record on the parent form.
My problem at this point is that when I open my form and try to renter the subform, I get an error. I'm told that my subform is not a control that can gain focus. Once I clear through the error everything works fine, until I load the parent form again.
Any ideas what I'm doing wrong?